Home / 8,708.45-12,017.70-4,729.56

Finding the Fourth Proportional to 8,708.45, 12,017.70 and 4,729.56

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Solution

The fourth proportional to 8,708.45, 12,017.70 and 4,729.56 is: 6,526.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,708.45 : 12,017.70 = 4,729.56 : x
  2. Step 2: Convert to fraction form
    8,708.45/12,017.70 = 4,729.56/x
  3. Step 3: Cross multiply
    8,708.45x = 12,017.70 × 4,729.56
  4. Step 4: Simplify right side
    8,708.45x = 56,838,433.21
  5. Step 5: Solve for x
    x = 56,838,433.21/8,708.45
  6. Step 6: Final answer
    x = 6,526.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.